All alkali earth metals have two valence electrons and they all form ions in +II oxidation state.
They all have two valence electrons.
Strontium
Strontium
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All atoms want to do is make their valence shell full. In alkali metals they have all of their shells completely full except one valence electron. The alkali metals REALLY want to get rid of that electron, so they will react with many elements/compounds to get rid of that electron. In alkaline earth metals they have all of their shells completely full except for two valence electrons. They also want to get rid of those electrons but the alkaline earth metals are not as desperate to do so as the alkali earth metals which make the alkaline much less reactive than the alkali metals.
They react with water like the alkaline metal but does not change or melt with fire.The alkaline part of the name comes from the fact that these metal form alkaline solutions, when they react with water. The earth part was added to differentiate these from the group one metals. Alchemists called them earth metals because they though that their oxides were new elements.In the middle age the oxides of these metals (metals which are not known in time) are called alkaline earths: alkalinebecause these oxides react with water forming an alkaline solution and earths because in the past non-metallic compounds were called earths.
Beryllium
The reactivity is increasing from beryllium to barium.
Alkali metals are more reactive than alkaline earth metals.
Yes, they do.
Yes, alkaline earth metals react with water forming their hydroxides.
Some, such as the alkali metals, alkaline earth metals, and a few others do. But most don't.
No, they generally do, even at room temperature.
Yes, both the alkali metals and the alkaline earth metals with react with oxygen. The alkali metals will do so rapidly even at room temperature, cesium and rubidium self-ignite on contact to air.
Alkaline earth metal
alkaline earth metals
The alkaline earth metals are in group 2 of the periodic table this means they have 2 electrons in each of their outermost energy 'shells'. The alkaline metals are in group 1 and only have 1 electron to lose in a reaction rather than 2. This means the alkaline metals react more readily.
Alkaline earth metals have two outer electons. Alkali metals have one. It is more energetically favorable (easier) t oremove one electron than two making alkali metals more reactive than alkaline earths.
It is in alkaline group.Not in alkaline earth group.It is in alkaline group because, Hydrogen has maximum oxidation number of +1.It react with Halogens.Displaced by other alkaline metals.
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